Concentering coupling device for pipe or casing sections.



UNITED STATES PATENT OEEIOE.

yJAMES W. HAYS, OE W'OODSFIELD, OHIO. ooNoENTEnINe couPLlNG. nEvlcE FoaPl'PE onv casina SECTIONS.'

. Specification ci Let ters I'atent.

Patienten-July 25, 1905.-

Apiicanon sied my a, 19105. 'serai nassaui.

l To all whomI it may concern:

Be it known that I, JAMES W. HAYS, a citizen of the United States, and a resident of lVoodslield, in the county of Monroe and State of Ohio, have invented a new and Improved Concentering CouplingDevice for Pipe or Casing Sections, ofwhieh the following is a full, clear, and exact descriptio This invention relates tomeans for concen- V' tering tubular members when coupling togetheradjacent ends thereof; and it consists, substantially, in details of construction and '.conibinations of parts hereinafter more partienlarly claims.

drilled oil or other wells it frequently happens that after the `pipe or casing has been 1 section* is inserted into lftion or coupling 'of the nipple effected with -of the pipe or casing within raised or ifted some distance within the well I enabling the two sections of pipe to be quicklyjoined together-foi'- use for various' purposes in the arts. a

' The above and additional objects are attained by means substantially such as are illustrated in theaccompanying drawings, forming a part of this specification, in which similar characters of reference indicate coi'- responding parts in all the views.

Figure 1 is asectional plan view on the line 1 1 of Fig, 2, illustrating the manner in which the concentering of the two adjacent ends of pipe or casing sections may described, and pointed. out in the l i centering device within an oil or other well In the withdrawal o f the pipe-casings from be established in the event of improper insertion of the conin the first instance. Fig. 2 is a vertical sec- 1 tom plan view of the it becomes parted at one or more places, due i to the 'excessive strain produced upon the threaded joints between adjacent ends of the different sections thereof, the lowermost sections being thereby caused to drop back into the well and rendering it extremely-diicult short a space of time as is desired. lnvsuch tion of pipe or casing ply to the end thereof a threaded (male or female) nipple, which together with the Said e upper end of the section of pipe or casing which'has remained in the well, so as to enable all of the coupled sections of the pipe central structure shown inFig. 2.

Before proceeding with a more detailed description it may be stated thatin the form of my improvements herein shown I employ a tubular`coiicentering device or element of spei cial-construction, the saine having means at to subsequently remove these sections in as j end of another coupling thereon. the Well and a connecone of its extremities for the attachment thereto of the end ot' a pipe or easing section, and

j is also provided with means at its-other extremity by which a fastening of this extremity may be effected wit-l1 either an adjacent The said concentering device oi element is provided with special means for effecting concentered relations between nthe parts connected o r joined thereby, and

g whilel have herein represented my improvef ments in a certain preferred embodiment it or casingto be removed or withdrawn from i the well, as was attempted to be effected in ing depths thereof.

One of the principal objects of the present vention is to overcome the disadvantages and objections above referred to and to provide means whereby the adjacent ends of pipesections to be coupled together iiiay be concenteied with relation to each other, thereby the upper end the well, ir'e` much time as will be understood that I am not limited therei to in precise detail, since immaterial changes the first instance. Considerable difficulty has therein maybe made coming within the scope of my invention. 4

Reference being had to the drawings by the designating characters marked thereon, 1 represents what may be stated to be asection of drilled oil or other well, and 2 represents the upper end portion of a pipe or casing section within the well and which may be said to have previously been attempted' to be lifted from the well with other superposed sections con; nected therewith, but which has fallen back into the well after having become parted from the section with which it was immediately joined by means of some form of couplingsleeve-such, for instance, as indicated at 3- the lower inner portion of this sleeve being internally threaded at 4 to tit a corresponding pipe or casing section or a.

external thread formed on the said pipe-section Q. In the upper end portion of the sleeve is fitted my improved concentering device 5, threaded externally to fit the internal thread of the sleeve or joined thereto in any other i manner, the said concentering device being preferably swelled or enlarged circumferentially at 6 and having fitted to` its upper extremity at 7 the lower end of a pipe or casing section 8, which, let it be said, has been lowered into the well (with the said concentering device) for the purpose of effecting the joinder of the concentering device with the said coupling-sleeve 3. The concentering device is formed at one side of the'lower end thereof with a prolongation or. extension 9 of suitable length and which is formed transversely on a curve corresponding to the arc or segment of the circle on which the said lower end of the concentering device is formed that the concentered relation between the pipe or casing section may be the more readily effect-ed, it being understood that it is necessary that the prolongation or extension 9 be inserted interiorly of the coupling-sleeve 3 to properly guide the lower end of the device 5 in place by the movement of the outer surface of the shown and described.

From the foregoing it is thought the construction and operation of my improved concentering device for pipe or casing sections will be thoroughly understood, and it is apparent, of course, that the same may be cmbodied in forms differing from that herein i have herein illustrated the said device as being enlarged or swelled at 6; but this particular feature of construction is not essential to the device in all instances, it being also apparent that the diameter of the device may be equal throughout, both internally and externally.

Havingthus described niyinvention, lclaim as new and desire to secure by Letters Patent-- 1. A device for concentering pipe or casing sections for coupling purposes comprising' a tubular structure provided. at the extremities thereof, with means for connecting the same with the adjacent ends of said sections, said device being provided. at one side, at au end thereof, with a longitudinal extension.

Q. A device for concentering pipe or casing sections for coupling purposes comprising a 2 tubular structure provided, at the extremities thereof, with means for connecting the same prolongation oi` extension against the inner i surface of the said coupling-sleeve 3.

- vice should thesam'e be lowered within the weil 1 in suchfmanner as to bring -the prowith the adjacent ends of said sections, said device being provided, at one side, at an end thereof, with a longitudinal extension formed In the use of my improved concentering delongation or extension 9 thereof externally of f the coupling-sleeve B as, for instance, in the position indicated at 10 in Fig. B-the oper- 3 ator will be apprised of this fact on a slight turning of the pipe or casing section S until the position of the prolongation or extension 9 has been reversed to that shown in of the prolongation or extension will then concentrically with the said tubular structure.

3. A device for concentering pipe or casing sections for coupling purposes comprising a tubular structure provided, at the extremities thereof,'with means for connecting' the same with the adjacent ends of said sections, said device being provided, at one side, at an end thereof, with a longitudinal extension formed transversely on an arc of the circle on'which said tubular structure is formed. dotted lines at 11 in Fig. 1, since the edge 12 i strike against the outer surface ofthe coupi ling-sleeve 3 and offer resistance to further turning of the concentering device. discovery being made the operator simply carried inwardly of the said coupling-sleeve and the proper connection then effected between the latter and the conceiitering device in an obvious manner.

On this tubular structure threaded at the extremities thereof for connecting the same with adjacent threaded ends of said sections, said device being provided, at one side, at an'end thereof, raises the concentering device by means of the with a longitudinal extension.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JAMES W. NAYS,

Witnessesz FRANK S. Haine, YV. H. MosiiLui. 

